[PATCH v3 0/2] clocksource/drivers/dw_apb_timer: improve performance a bit
Jisheng Zhang
jszhang at marvell.com
Wed Nov 25 07:50:49 PST 2015
On Wed, 25 Nov 2015 23:48:32 +0800
Jisheng Zhang wrote:
> These two patches try to improve the dw_apb_timer clocksource/clockevent
> performance.
These patches depends on the apbt_readl return value fix patch:
http://lists.infradead.org/pipermail/linux-arm-kernel/2015-November/388250.html
thanks,
Jisheng
>
> since v2:
> - only use relaxed version in critical path
> - inline apbt_readl/apbt_writel
> - add some performance numbers
>
> since v1:
> - correct the wrong sentence in commit msg about writel performance on
> CA9 with outer L2 cache. Thank Arnd for pointing out this in another
> thread.
>
> Jisheng Zhang (2):
> clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel
> clocksource/drivers/dw_apb_timer: Use {readl|writel}_relaxed in
> critical path
>
> drivers/clocksource/dw_apb_timer.c | 30 +++++++++++++++++++++---------
> 1 file changed, 21 insertions(+), 9 deletions(-)
>
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